Add max rsocket payload size
Add max rsocket payload size

Summary:
We're seeing some crashes when attempting to send payloads larger than are supported by rsocket.
Instead of crashing, skip the message, but log it so we can see what it's containing.

This is where the failure occurs: https://github.com/rsocket/rsocket-cpp/blob/master/rsocket/framing/FramedDuplexConnection.cpp#L64

Reviewed By: passy

Differential Revision: D12857616

fbshipit-source-id: 2b02d7f5dd6499ba81783d3f8aefcbb64d9d408a

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